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We are now going to talk about operating systems in relation to security now an operating system or

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OS is system software that manages computer hardware and software resources and provides common services

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for computer applications.

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The operating system is the main software on a computer that controls all the applications.

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Examples of desktop operating systems include Windows 7 a 10 also Mac us Debian Linux a boon to Linux

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BSD salon resect cetera on the mobile phone.

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There are operating systems such as iOS for Apple Android Windows OSs BlackBerry OSS Symbian and so

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on.

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The operating system has full control of all actions on a device.

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If the operating system isn't secure or is compromised it is absolutely game over from the start for

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your security.

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The OS needs to be a secure base to hope to have a secure environment.

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There are a lot of misconceptions when it comes to operating systems and security.

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You may have heard for example that Macs can't get viruses.

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Not true.

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Lots of people also say that Windows is terrible when it comes to security.

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Not necessarily true either.

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Then you've got people in the Linux camp that think Linux is the greatest operating system for security

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without fault.

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Not true Linux like any operating system isn't perfect.

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So let's explore some of those beliefs based on facts and statistics over the next few lectures and

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see where we actually end up when it comes to the security of Common Operating Systems.

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First let's consider the security features available within operating systems and also available third

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party apps for those operating systems.

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So Windows Windows has got a bad track record.

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There's no doubt about that.

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It's had weak security design from the beginning but you have to give credit where credit is due.

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In the more recent operating systems Microsoft has started to take security seriously and with its later

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products and its later security features like bit lock the device guard windows halo windows trusted

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apps.

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It has a fairly solid set of security features.

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Now the thing that lets windows down especially with the more recent Windows 10 are the tracking and

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privacy issues which is a slightly different thing to security features but it does put some people

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off.

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We will be covering Windows security and privacy features and applications in much more detail as we

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go through the course.

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This is an overview.

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Next Marcos currently again like Windows has a reasonable solid base of security features things like

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address space layout randomisation application sandboxing Firebolt to privacy controls.

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Apple's trusted store apps and so on all strong security features.

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But if you were to compare Windows 10 to the latest Mac course Windows has more security features and

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much more third party security applications are available for Windows over Mac of sorts.

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I mean by that so for example if you're looking for a good application firewall for Mac us or another

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security product or feature you're going to get from a third party.

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You have limited choice.

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There just isn't much available for Windows.

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The choice is almost endless.

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We will be covering makkal security and privacy features and applications in more detail as we go through

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the course.

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Then we have Linux Linux type operating systems BSD type Unix like operating systems.

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There's a large variety of these operating systems so I'm bucketing them all together for convenience

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here for this lecture.

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If you're looking for the most secure operating systems this is where you're going to find them.

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The likes of cubes OS tale's Debian Arch Linux would be good examples of security and privacy focused

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operating systems and we will of course be covering cubes as tails and other Linux operating system

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security features and applications as we go through the course and just for your information if you're

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looking for beginner friendly Linux operating systems then consider Manjari you a bound to and mint.

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But Debian is my recommendation for a general use operating system that also consider security and privacy.

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If you're looking for a Linux operating system when we consider Windows Mac and Linux Windows has the

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most security features and third party security applications available Mac has the least security features

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and third party security applications available and Linux is where this security focused rating systems

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can be found.

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Windows Mac has a linux based on their security features can all be used as a secure base operating

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system.

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But if you need higher levels of protection you'll be looking towards Linux type operating systems on

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the mobile platform.

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The main competing operating systems are android from Google and also from Apple.

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Android is a more open operating system when you're allowed to do more with it and you can do more with

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it which is great but this isn't good for security there.

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IOS is a closed system restricting what you can do.

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You can do less on it than you can on Android but because it's a restricted operating system a close

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operating system this is good for security.

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Android is improving security all the time but iOS from Apple will be the market leader.

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If you're looking for a secure mobile operating system right now.